English verb conjugation
COULD SYSTEMISE

Regular verb: systemise - systemised - systemised

Affirmation

Simple form	V-ing form
I could systemise you could systemise she could systemise we could systemise you could systemise they could systemise	I could be systemising you could be systemising she could be systemising we could be systemising you could be systemising they could be systemising
Perfect	V-ing perfect
I could have systemised you could have systemised she could have systemised we could have systemised you could have systemised they could have systemised	I could have been systemising you could have been systemising she could have been systemising we could have been systemising you could have been systemising they could have been systemising

Negation

Simple form	V-ing form
I could not systemise you could not systemise she could not systemise we could not systemise you could not systemise they could not systemise	I could not be systemising you could not be systemising she could not be systemising we could not be systemising you could not be systemising they could not be systemising
Perfect	V-ing perfect
I could not have systemised you could not have systemised she could not have systemised we could not have systemised you could not have systemised they could not have systemised	I could not have been systemising you could not have been systemising she could not have been systemising we could not have been systemising you could not have been systemising they could not have been systemising

Interrogative form

Simple form	V-ing form
could I systemise? could you systemise? could she systemise? could we systemise? could you systemise? could they systemise?	could I be systemising? could you be systemising? could she be systemising? could we be systemising? could you be systemising? could they be systemising?
Perfect	V-ing perfect
could I have systemised? could you have systemised? could she have systemised? could we have systemised? could you have systemised? could they have systemised?	could I have been systemising? could you have been systemising? could she have been systemising? could we have been systemising? could you have been systemising? could they have been systemising?

Interro-negative form

Simple form	V-ing form
could I not systemise? could you not systemise? could she not systemise? could we not systemise? could you not systemise? could they not systemise?	could I not be systemising? could you not be systemising? could she not be systemising? could we not be systemising? could you not be systemising? could they not be systemising?
Perfect	V-ing perfect
could I not have systemised? could you not have systemised? could she not have systemised? could we not have systemised? could you not have systemised? could they not have systemised?	could I not have been systemising? could you not have been systemising? could she not have been systemising? could we not have been systemising? could you not have been systemising? could they not have been systemising?